多二对2型糖尿病风险的影响是通过DNA甲基化介导的
Noora Kartiosuo1, Kari Auranen2, Toby Mansell3
1Department of Mathematics and Statistics, University of Turku, Turku, Finland; Centre for Population Health Research, University of Turku and Turku University Hospital, 20520 Turku, Finland; Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku 20520, Turku, Finland; Murdoch Children's Research Institute, Parkville, Australia.
聚化双 (PCB) 暴露会增加2型糖尿病 (T2D) 的风险. DNA甲基化部分调解了这种联系,CPT1A基因中的cg00574958显示出显著的关联,这表明它是潜在的表观遗传干预目标.
科学领域:
- 环境健康 环境健康
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 内分泌学 在内分泌学.
背景情况:
- 多双 (PCB) 被认为是糖尿病原体和潜在的表观遗传调节剂.
- 表观遗传变化,特别是DNA甲基化,与2型糖尿病 (T2D) 病原发生有关.
- 将PCB暴露与T2D联系在一起的潜在机制是通过表观遗传修饰.
研究的目的:
- 调查PCB暴露与T2D风险之间的关联.
- 确定DNA甲基化对PCB暴露和T2D之间的关系中介的程度.
- 为了确定参与这种调解的特定CpG站点.
主要方法:
- 利用了两个表观基因组范围的关联研究 (EWAS).
- 采用调解分析来评估DNA甲基化作用.
- 分析了特定的 PCB 同源 (74, 99, 118, 138, 183) 和 CpG 位点甲基化.
主要成果:
- 暴露于PCB,特别是特定的同源,显著增加了T2D风险 (ORs 1.38-1.54).
- 五个CpG地点被确定为PCB-T2D关联的潜在媒介.
- 据估计,这些部位的DNA甲基化调解了40% (95% CI: 20, 60%) 的效果.
- 在CPT1A基因中的cpG位点cg00574958显示出最强的调解效应.
结论:
- 暴露于PCB与增加T2D风险有关.
- 基因甲基化,特别是在CPT1A基因中的cg00574958,显著调解与PCB暴露相关的T2D风险.
- 这突显了CPT1ADNA甲基化作为T2D预防和治疗中的表观遗传干预的潜在目标.
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